Thanks for answering my question - I'd suggest you to put more information on jelastic.com, for example, for US customers, do you have your fully owned data center in US? or you are building on top of other providers (AWS, Rackspace, Linode etc etc)? if so, how is the quality of service and support of your provider? Where is your engineer located? You might also want to consider to provide a 800 phone number. As far as software stack is concerned, I suggest you to add messaging support for example ActiveMq or RabbitMq - it is essential for "big" systems, which are more likely be your source of revenue.